Metacure T-12 Dibutyltin dilaurate Air Products Crosslinking / Coupling / Curing Agents >> Amide Polyurethane A moderately reactive catalyst which functions as the "workhorse" of our line of tin catalysts. Lliquid organotin compound which is an effective catalyst in production of polyurethane coatings. Since pure dibutyl tin dilaurate is a solid at room temperature, this catalyst has been specifically formulated to remain liquid at temperatures above 65°F (18°C) to permit easier handling in most applications. The residual free acid level is low and the product is noncorrosive to iron in the absence of moisture. A moderately reactive catalyst which functions as the "workhorse" of our line of tin catalysts. Lliquid organotin compound which is an effective catalyst in production of polyurethane coatings. Since pure dibutyl tin dilaurate is a solid at room temperature, this catalyst has been specifically formulated to remain liquid at temperatures above 65°F (18°C) to permit easier handling in most applications. The residual free acid level is low and the product is noncorrosive to iron in the absence of moisture.